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Method and apparatus for performing cooperative communication in wireless communication system

專利號(hào)
US11553557B2
公開日期
2023-01-10
申請(qǐng)人
Samsung Electronics Co., Ltd.（KR Suwon-si）
發(fā)明人
Hoondong Noh; Euichang Jung; Jinhyun Park
IPC分類
H04W72/04; H04W80/02; H04W8/24; H04W76/27; H04L5/00; H04L5/10
技術(shù)領(lǐng)域
tci,ue,dmrs,jt,trp,bs,ce,mac,bwp,nr
地域： Suwon-si

摘要

In a wireless communication system, a user equipment (UE) transmits, to a base station (BS), UE capability information comprising whether the UE supports cooperative communication for receiving physical downlink shared channels (PDSCHs) from a plurality of transmission reception points (TRPs) in a particular time-frequency resource, obtains, via radio resource control (RRC), information about whether the cooperative communication is to be applied from the BS, identifies a format of a medium access control (MAC) control element (CE) received from the BS based on whether the BS is to apply the cooperative communication, and determines transmission configuration indication (TCI) states according to the respective TRPs, based on the identified format of the MAC CE.

說明書

  • VRB-to-PRB mapping (0 or 1 bit): when 0, this indicates non-interleaved, and when 1, this indicates interleaved VRB-to-PRB mapping. When frequency domain resource allocation is configured as resource type 0, 0 bit.
  • PRB bundling size indicator (0 or 1 bit): when a higher layer parameter prb-BundlingType is not configured or is configured as “static,” the PRB bundling size indicator is 0 bit, and when configured as “dynamic,” the PRB bundling size indicator is 1 bit.
  • Rate matching indicator (0, 1, or 2 bits): this indicates a rate matching pattern.
  • ZP CSI-RS trigger (0, 1, or 2 bits): this indicator triggers an aperiodic ZP CSI-RS.

    • For transport block 1:

      • Modulation and coding scheme (5 bits): this indicates a modulation order and a coding rate used in PDSCH transmission.
      • New data indicator (1 bit): according to whether this indicator is toggled or not, whether a PDSCH is initially transmitted or retransmitted is indicated.
      • Redundancy version (2 bits): this indicates a redundancy version used in PDSCH transmission.
      • For transport block 2:
      • Modulation and coding scheme (5 bits): this indicates a modulation order and a coding rate used in PDSCH transmission.
      • New data indicator (1 bit): according to whether this indicator is toggled or not, whether a PDSCH is initially transmitted or retransmitted is indicated.

    權(quán)利要求

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